Julius g



(N Model.)v o .Y J. G. POH'LE.

GO'MPRBSSED AIR WATER BLEVATOR. No. 347,196. PatentedAug'. 10, v1886.

` air water-elevator.

UNITED STATES PATENT Ormea.

JULiUs e. POHL, OF GEORGETOWN, COLORADO.

COMPRESSED-AIR WATER-ELEVATOR.

SPECIFICATION forming part ox' Letters Patent No. 347,196, dated August 10, 18,86.

Application filed January 23,1886.

To all whom it may concern:

Beit known that I, JULIUs G.- POHL, of Georgetown, in the county of Clear Creek, and in the State of Colorado, have invented ce1'- tain new and useful Improvements in Compressed-Air Tater-Elevators; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in w-hich-.

Figure l shows a vertical sectional view of my apparatus; Fig. 2, a detail view, partly in section, of one of the connecting pipes between the compressed-air pipe and the waterdischarge pipe; and Fig. 3,v a detail sectional view of a modification of the apparatus shown in Fig. l.

Letters of like'name and' kind refer parts in each of the figures.

The object of my invention is to provide an improved waterelevating apparatus by which the water can be elevated to a greaterdistance than heretofore possible with a given amount of power or pressure; and to this end my invention consists ofthe apparatus and the construction, arrangement, and combinato like tion of parts thereof, as hereinafter specified.

y In the drawings, A designates the receiving or collecting' tank or chamber of a compressed- As is usual insucli elevators, the tankihas the upwardly or inwardly opening valve a, preferably at its bottom, and the discharge-pipe lextending up from near the bottom of the tank, has the check-valve b, also opening upward. Entering the top of the tank or chamber A is the compressedair pipe C, to be connected at its upper end with suitable air-compressing ory compressed-airsupplying devices. y The source of supply of compressed air or the manner or means of compressing and supplying it to the pipe C can be of any desired kind and can be varied as desired without departure from my invention.

For regulating the necessary intermittent flow of the compressed air down through the pipe to the tank, I prefer the valve mechanism shown and described in the joint applica.-` tion of. myself and David Hill, No. 156,886, now pending. l At D, I show the threeway cock used with such mechanism. Ido not limit myself, however, to such cock or to any vpreferably made quite small.

Serial No.189,/1S4. (No model.)

e; but such is not at all necessary and can be v dispensed with as desired. The opening of each pipe E into the water-discharge pipe is In the drawings Ishow a plug, e', in the pipe, in which is a small opening, e2, connecting with the bore of the discharge-pipe. Ins'tead of one opening e, there may be several in each plug, all made small, so that the air flowing through them from the air pipe into the water con tained in the discharge-pipe will be in small jets, so as to formvnumerous small bubbles, as indicated in the drawings. I contemplate, if desired, putting in each connectionpipe E used a cheek-valve, e, as indicated in Fig. 2, adapted to open to pressure from thc air-pipe side, but to close against pressure from the other way. Such valve can be ofany of the well-known and common forms. It is not necessary', and may ordinarily be dispensed with without detriment lso the action of the apparatus.

In using my apparatus or elevating mech anism, as shown and described, the operation is as follows: The tank or chamber A being immersed in the water to be elevated, the surrounding water rushes up past valve a and iills the tank. Compressed air being then by suitable valve mechanism admitted to pipe C, passes downward through it into the tank in the usual way and forces the water therein up the discharge-pipe. So much of the action of the apparatus is common in other waterelevators; but it has beenfound that to raise water in this way it has heretofore required,

Lat sea-level, about fifteen pounds pressure for every thirty-three feet that the water is caused to rise in the water-discharge pipe. In my apparatus, as shown and described, some of ICO air so injected into the discharge water-column has, I have found, a remarkably advantageous -cffeet upon the workings of the apparatus.

\Vhere the water was forced to a height of sixty-five feet without injecting air, as described. into the discharge water-pipe, it was found that the pressure ot' the compressed air had lo be thirty-five pounds. After theintrol duction of one of the connecting blow-tubes at a point about forty feet from the top of the discharge-pipe and t\\-'entyfive feet from its bottom it was found that no longer was thirtyfive poundspressurenecded,but only fifteenthat is, the water was raised the same height as before by air at less than half the pressure before necessary. 'hile I,the water issuing from the eductionpipe under the new conditions was not entirely continuous in its stream, it was more so than before. rIhough the water discharged was mixed somewhat with air, the amount of water expelled in the steadier stream per minute was about the same as before, and at times appeared to be even greater. Itis intended tohaveanumbcr of the blow-tubes, one for about every twentytive or thirty feet of the height ofthe dischargepipc when only fifteen poundspressure is used, or one for every-f1l`ty or sixty feet when conipressed air of thirty pounds pressure is used.

The lowest blow-tube should be above the check-valve in the discharge-pipe. Ifdcsired, a separate air-supply pipe, besides the main pipe C, can be used to conduct and supply air to the blow-tubes, to be injected into the column of discharge water, and gases or vapors coluprcssed or under pressure can be used with my apparatus, instead ol' the compressed air, without departure from my invention.

In Fie. 3 I show amodilicd form of the apparatus shown in Fig. 1.. In this form the air-supply pipe (l, instead of being carried down parallel with the eduction-pipe 13, and connected therewith by the connecting-pipes E ll, is conducted into and extends down within the pipe Il to a point near the collecting tank or eistcrn A. It is then carried outside ofthe pipe l; and connected with the tank or cistern, as in the other form of apparatus shown and described. The portion of the airpipe which is within pipe lli is provided with any desired numberol'smallopenings through which the air can escape or be injected into the column of water, for the purpose set forth hercinbefore, to act on the water in the same way as the injected air in the forni of apparatus shown in Fig. l.

I contemplate aiding the action of all kinds of pumps or forcing devices for elevating water or other liquids by air injected into the discharge or eduction pipe, as set forth and shown herein.

My apparatus, as described and shown, is

obviously useful for elevating other liqnidsas, for instance,oil-as well as water.

I do not claim or desire to cover by my claims an injector or ejector used as a drawing and forcing device, and operated by steam, water, or air, ora series of water-forcing devices placed at intervals along a pipe and adapted to act on the waterin succession asit passes along up the pipe. The air admitted, as described and shown by me, into the eduction-pipe above the forcing device proper iS not intended to and does not have any such action as the steam, water, or other medium used in ejectors. It simply flows into the column of water in the pipe iu fine streams and mixes with it. rIhere is not needed,there fore, the great pressure and power necessary where an ejector is used, but only enough to overcome the pressure of the water against the ai r-openings.

Vhere my apparatus, as described and shown, is used instead of a series of forcing devices or ejectors,thcre is a positive and considerable saving in the power and pressure necessary to be maintained.

Having tllus described my invention, what I claim is- 1. In combination with meansforpositively forcing or elevating water and the rising eductien pipe or passage thereof, means for injecting air directly into such rising pipe to mingle with the ascending column of water, substantially as and for the purpose specified.

2. In combination with power mechanism for positively forcing water up a rising eduction pipe or passage, means for introducing air into the eduction-pipc to mingle with the ascending column of water, substantially as and for the purpose shown.

3. In combination with a device for posilively elevating water by compressed air,hav ing the compressed-air inlet or supply pipe and the rising eduction-pipe, means for introducing air into the eduction-pij'ie from theairsupply pipe, substantially as and for the purpose set forth.

L In combination with the rising ednction pipe or passage of a liquid-elevating device provided with a cheek-valve to prevent the downward Ilow of liquid in the eduetion-pipe, means for introducing air into the eductionpipe above the valve, substantially as and for the purpose described.

5. In combination with adevice for elevating water by compressed air having the compressed-air inlet or supply pipe and the rising eduetion-pipe, one or lmore connectingpipes, between such inlet and eduction pipes adapted to inject air into the cduetion-pipe in a finejet orjets, substantially as and for the purpose specified.

6. In combination with the collecting tank or chamber and the compressed-air and npright, eduction pipes, one or more tubes or pipes connecting the air and eduction pipes above the tank or chamber, substantially as and for the purpose described.

ICO

7. In combination with the upright Watereduction pipe B and thecompressedair pipe C, one or more tubes connecting such pipes, each provided with a plug having one or more small orifices connecting with the bore of the -water-eduction pipe, substantially as and for the purpose described. 4

S. The improved method of raising Water or other liquids, which consists in forcing the same up an upright ednction-pipc and introducing air into the column of water in the pipe to mingle with the ascending column 4of" water, substantially as and for the purpose described.

9. The improved method of elevating Water or other liquids, which consists in forcing the water or liquid up in au upright eductionpipe by asuitable forcing or pumping device and injecting into the column of liquid within the pipe air in the form ofafine jet orjets, zo

JULIUS G. POHL.

XVi tnesses:

J. P. Postr, ROBERT H. Con. 

